Channeling-machine.



F. E. BERTRANDL OHANNELING MACHINE. APPLICATION FIL'ED Mus, 1911.

1,030,707. i Y Patented June 25, 1912.

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F. E'. BERTRAND.

CHANNELING MACHINE.

APPLICATION 11.31) MAY 5, 1911.

Patented June 25, 1912.

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FREDERIC E. BERTRANID, OF SWAMPSGOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

CHANNELING-MACHINE.

To all whom it may concern:

Be it known that I, FREDERIG E. BERTRAND, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Channeling- Hachines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to channeling machines, and more particularly to such machines for channeling soles to be used in turn shoes.

In the manufacture of certain types of turn soles, the lip formed by the channel knife extends completely around the sole. It has been customary to cut through the lip at the commencement of the cutting operation and then withdraw the knife through this cutat the end of the channeling operation. This mode of channeling is objectionable, however, inasmuch as the lip is weakened and the sewing operation is made more difficult. The British Letters Patent to Alfred J. Boult, No. 3,986 dated February 17, 1910, illustrate and describe a channeling machine for performing the above-described operation. By reference to this patent it will be seen that in this machine there is provided a vertically movable work table and an edge gage, the edge gage being adjustable toward and from the table, but so mounted as to be movable vertically therewith. In this machine, when the work table is depressed to permit the removal of the channeled sole, it is incon- .venient to free the sole from engagement with the edge gage and the channel knife for the reason that the downward movement of the edge gage is not great enough to bring it out of contact with the sole, therefore it is impossible to push the sole inwardly to disengage it from the channel knife. It is thus seen that considerable manipulation is required to remove the channeled lip from its position above the channel knife, which often results in a cutting or weakening of the lip.

The object of the present invention is to provide a channeling machine for cutting a continuous channel around a sole, which Specification of Letters Patent.

Application filed May 5, 1911.

Patented June 25, 1912. Serial No. 625,134.

for a diagonal movement toward and from the channel-forming devices, and the shoulder knife is preferably raised simultaneously with the lowering of the work table so that the sole is entirely free for instant-aneous removal from the channel knife.

To the accomplishment of this object, and such others as may hereinafter appear, as will be readily understood by those skilled in the art, the invention comprises the features and combinations of parts hereinafter particularly described and pointed out in.

the appended claims.

The invention as applied to a turn channeling machine of the type illustrated and described in the British Letters Patent to Boult, hereinbefore referred to, is illus trated in the accompanying drawings, in which Figure 1 is a rear elevation of the machine with a sole in operative position; Fig. 2 is a similar view showing the work table depressed and the sole ready to be removed; and Fig. 3 is an enlarged diagrammatic View illustrating the movement of the work table to free the sole from the channeling devices.

The channel-forming devices, sole feeding mechanism, and their related parts are identical with those illustrated in the patent to Boult, to which reference may be had to obtain a complete description. The shoulder knife 1 is carried in a knife block on the lower end of the slide 100 (see dotted lines Fig. 1) supported in ways in the machine frame 2. The pin 3, projecting from the slide, may be engaged by the lever f to lift the shoulder knife from the sole. The shoulder knife presser foot 5 is held yieldingly in engagement with the sole by the spring 6. The channel knife 7 and its presser foot are mounted in the channel block 8. The work table 9 is carried upon the casting 10 vwhich also carries the edge gage 11. These parts are all as shown in the British patent hereinbefore referred to. In the illustrated embodiment of the invention, the casting 10 is provided with a support 12 mounted to move longitudinally in a sleeve or guideway 13 mounted at an angle on the frame 2. A collar 14 is secured to the lower end of the slide 12 and carries a lever 15. One end of this lever is normally held in an elevated position by a spring 16. The other end of the lever is connected with one end of a bell crank 17 which is pivoted on the sleeve 13 and thus forms an inverted toggle. A stop 18 is provided to hold the toggle in its straightened position. The other arm of the bell crank 17 is connected by a link 19 with a second bell crank 20 which is connected with the lever 4 by two rods 21 joined by a spring 22. An adjustable stop 23 is provided to limit the amount of lift given the shoulder knife by the lever 1. A treadle rod 24 is connected with an arm of the lever 15, which, when depressed,

' will draw the support 12 diagonally downward within its guideway and also lift the shoulder knife. The first movement of the treadle will lift the shoulder knife until the lever 4 engages the stop 23. Further movement of the treadle to depress the work table will distend the spring 22.

It is apparent from Fig. 3 that if a sole is placed on the work table and against the edge gage 11 while the treadle is depressed, releasing the treadle will allow the spring 16 to lift the table. The direction of movement of the table is approximately in the line of the cutting edge of the channel knife, which will pierce the sole without cutting through the part which is to form the lip. During the channeling operation the operator holds the sole against the edge gage. When the cut is completed, the treadle is depressed, which withdraws the work table and the edge gage diagonally downward to the position shown in Figs. 2 and 3 and at the same time raises the shoulder knife. The' operator at this time ordinarily will continue to hold the sole against the edge gage, and because of the inward movement imparted to the gage by the lowering of the work table, the sole is enabled to be withdrawn from the channel knife 7 by a movement substantially in the line of its cutting edge, thus freeing the sole from the channelforming devices, without cutting through the lip. The release of the sole is assisted by the shoulder knife presser foot, which, during the lowering of the work table, bears with spring pressure on the sole and tends to force it down off the knife. Just before being withdrawn from the machine, the

sole assumes the full line position of Fig. 3. If the operator does not continue to press the sole toward the edge gage as it moves inward, the downward pressure of the presser foot 5, acting in conjunction with the angle of the channel knife 7, will automatically free the sole from the point of the channel. knife and drop it on the table into the position shown in full lines in Fig. 3. In either event, the single act of lowering the work table frees the sole entirely from the channeling devices and places it in position to be removed from the machine without engagement with any of the working parts.

It will be apparent to those skilled in the art that with the described construction the operator is enabled to cut a continuous lip around a sole and to enter and remove the work by the use of a single treadle.

Broadly considered, the invention herein set forth is not limited to use in the particular form of turn channeling machine hereinbefore described, and it should be distinctly understood that except as specifically defined in the claims the invention is not limited in scope to use in that particular type of turn machine.

It will be clear to those skilled in this class of machines and with the general objects of the present invention in view, that changes may be made in the details ofstructure, the described and illustrated embodiment thereof bein intended as an exploitation of its underlying essentials the features whereof are definitely stated in their true scope in the appended'claims.

What is claimed as new, is

1. A channeling machine, having, in combination, a channel knife to enter the face of the sole and cut a lip therefrom, an edge gage, a work table, and means to simultaneously move the gage and table toward and from the knife in substantially the line of the cutting edge of the knife, substantially as described. 7

2. A channeling machine, having, in combination, channel-forming devices, a work table, an edge gage, and means for moving the work table and edge gage diagonally toward and from the channel-forming de- I vices, substantially as described. a

3. A channeling machine, having, in combination, a shoulder knife, a channel knife,

a work table, an edge gage, and means under control of the operator to lift the shoulder knife and simultaneously move the work table and edge gage diagonally away from the knives, substantially as described.

4. A channeling machine, having, in combination, a channel knife, a spring-actuated 1 presser foot to engage the margin of the sole being channeled, a work table, an edge gage carried by the work table, and means for moving the work table and edge gage diagonally away from the knife so that the sole 0n the knife is free to be forced from moving the Work table up and down and the the knife by the presser foot, substantially edge gage in and out relatively to the chanas described. nel knife, substantially as described.

5. A channeling machine, having, in com- FREDERIC E. BERTRAND. 5 bination, a Work table, an edge gage, a chan- Witnesses: v

nel knife extending at an angle to the sur- JOSIAH E. REID, face of the table, and a single means for CHESTER E. ROGERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

